<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <!--引入样式-->
    <link rel="stylesheet" href="plugins/vue-2.7/elementUI/theme-chalk/index.css">
<!--    <link rel="stylesheet" href="https://unpkg.com/element-ui/lib/theme-chalk/index.css">-->
</head>
<body>
<div id="app">
    <el-button @click="visible = true">Button</el-button>
    <el-dialog :visible.sync="visible" title="Hello world">
        <p>Try Element</p>
    </el-dialog>
</div>
</body>
<!--引入组件库-->
<script src="plugins/vue-2.7/vue.min.js"></script>
<script src="plugins/vue-2.7/elementUI/index.js"></script>
<!-- import Vue before Element -->
<!--<script src="https://unpkg.com/vue@2/dist/vue.js"></script>-->
<!--&lt;!&ndash; import JavaScript &ndash;&gt;-->
<!--<script src="https://unpkg.com/element-ui/lib/index.js"></script>-->
<script>
    new Vue({
        el: '#app',
        data: function () {
            return {visible: false}
        }
    })
</script>
</html>